Not always. By default, I enter throwing regen and Devine Benison on the tank. In standard content, I will alternate between Asylum and Temperance when the tank stops with whatever size group he pulls. Assize and Holy spam, then assess. Ideally healing will involve Afflatus Solace so I can get my blood lily. If the tank hasn't taken much damage because they're mitigating well, or DPS is absolutely rolling with the group, it's very unlikely that I will bother with regen. That tick will cut into my ability to generate the lily. If the tank is getting hammered, regen is a thing. All in all, I am more likely to toss a regen on a single DPS who took some damage. Their need usually isn't as deep, nor as regular. That said, I tend to utilize regen quite a bit, typically about as much as I use assize, it's just not a guarantee for the tank.